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Water Hardness in 50626

Dunkerton, Iowa · Black Hawk County

200 PPM
11.7 GPG
Hard
0Soft60120180300+
Verified — Annual Water Quality Report

Dataset updated March 9, 2026Matched to 4 water systemsTap readings can vary by utility zone, treatment, and plumbing. Methodology

Source context

How this ZIP reading is built

This ZIP reading is built from 4 matched water systems. When more than one system is matched, the displayed value is weighted toward larger known service populations when that data is available.

Source basis
3 verified treated-water sources
4 matched systems total for this ZIP; treated-water reports are prioritized when available.
Water source profile
Primarily groundwater
Groundwater commonly picks up calcium and magnesium after contact with rock and soil. This profile is weighted by known population served across matched systems.
Data recency
March 9, 2026
Dataset rebuilt March 9, 2026; individual utility reporting years can vary.

Hardness is a mineral-content reading, not a drinking-water safety rating. Use it for scale, appliance, and softener decisions; check your utility report or test your tap before sizing treatment equipment. See how we calculate local readings.

Water Systems Serving 50626

These are the systems matched to this ZIP code. The displayed ZIP value is weighted toward larger known service populations when population data is available.

4 water systems
PWSID is the public water system identifier. Data Source shows whether the hardness value comes from a treated-water report, USGS monitoring, or a local estimate; source year is shown when available.
Waterloo Water Works
IA0790074
Hard
200 PPMgroundwater69,504 servedVerified — Annual Water Quality Report
Source water: 242 PPM
Cedar Falls Municipal Water Utilities
IA0709084
Hard
200 PPMgroundwater40,713 servedVerified — Annual Water Quality Report
Source water: 190 PPM
Ia Regional Utilities Assoc (Waverly)
IA0990701
Hard
200 PPMgroundwater37,820 servedVerified — Annual Water Quality Report
Source water: 380 PPM
Dunkerton Muni Water Supply
IA0717084
Hard
242 PPMgroundwater842 servedHigh Confidence — USGS Monitoring

Nearby Zip Codes

506232005070320050629250506682105066720050707202506482105062220950702200506342005064121050662250

What This Means For You

Recommendations are based on the displayed ZIP hardness reading. Confirm your tap reading before sizing or buying treatment equipment.

Hard Water - Treatment Recommended

Your water is hard. Scale buildup is likely affecting your plumbing and appliances, reducing their lifespan and efficiency. A water softener is recommended to protect your home.

Recommended Products

Salt-Based Water Softener
Our PickAFWFilters Fleck 5600SXT 48KAlso GreatWhirlpool WHES40E 40KAlso GreatAFWFilters 64K GrainAlso GreatAFWFilters Iron Pro 2 64KAlso GreatSpringWell Filter + Softener Combo
Salt-Free Water Conditioner
Our PickSpringWell Salt-Free Cartridge
Water Hardness Test Kit
Our PickVarify (150 Strips)Also GreatJNW Direct (150 Strips)
Shower Head Filter
Our PickWeddell DuoAlso GreatAquaBliss SF100Also GreatSprite Pure 7-SettingAlso GreatAqua Earth 20-Stage
Water Softener Salt
Our PickMorton Clean & ProtectAlso GreatDiamond Crystal Bright & Soft

Learn more: Do I Need a Water Softener? | Salt-Based vs Salt-Free | Size Calculator | How to Test Your Water

Know your water hardness?

If you've tested your water or have your utility's CCR report, share your reading to help us improve accuracy for Dunkerton, IA (50626).

Submit Your Data

Frequently Asked Questions

Is the water hard in Dunkerton, IA (50626)?

The average water hardness in 50626 is 200 PPM (11.7 GPG), which is classified as hard.

Do I need a water softener in 50626?

With hardness of 200 PPM, a water softener is recommended for homes in 50626.

Is hard water in 50626 safe to drink?

Water hardness itself is a mineral-content reading, not a drinking-water safety rating. Calcium and magnesium are naturally occurring minerals, but you should check your utility's Consumer Confidence Report for contaminant and compliance information.

How many water systems serve 50626?

Zip code 50626 in Dunkerton, Iowa is served by 4 water systems.

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